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FILE - In this July 5, 2005, file photo, Lance Armstrong, right, lets his Discovery Channel teammates take over after taking the lead during the fourth stage of the Tour de France cycling race, a 67.5-kilometer (41.95-mile) team time trial between Tours and Blois, western France. After a decade of denial and being stripped of his titles, Armstrong has finally come clean_ During an interview with Oprah Winfrey taped Monday, Jan. 14, 2013, Armstrong said he used performance-enhancing drugs to win the Tour de France, a person familiar with the situation told The Associated Press. (AP Photo/Christophe Ena, File)

FILE - In this July 5, 2005, file photo, Lance Armstrong, right, lets his Discovery Channel teammates take over after taking the lead during the fourth stage of the Tour de France cycling race, a 67.5-kilometer (41.95-mile) team time trial between Tours and Blois, western France. After a decade of denial and being stripped of his titles, Armstrong has finally come clean_ During an interview with Oprah Winfrey taped Monday, Jan. 14, 2013, Armstrong said he used performance-enhancing drugs to win the Tour de France, a person familiar with the situation told The Associated Press. (AP Photo/Christophe Ena, File)